2691025344 has 84 divisors (see below), whose sum is σ = 8815256944. Its totient is φ = 768863232.

The previous prime is 2691025343. The next prime is 2691025357. The reversal of 2691025344 is 4435201962.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2691025299 and 2691025308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691025343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329677 + ... + 337740.

Almost surely, 2^2691025344 is an apocalyptic number.

2691025344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2691025344 is an abundant number, since it is smaller than the sum of its proper divisors (6124231600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2691025344 is a wasteful number, since it uses less digits than its factorization.

2691025344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667442 (or 667429 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2691025344 is about 51875.0936770239. The cubic root of 2691025344 is about 1390.9320981084.

The spelling of 2691025344 in words is "two billion, six hundred ninety-one million, twenty-five thousand, three hundred forty-four".